Steps to Reproduce:
1. Open a project in the Modern UX
2. Switch to Tasks - Board view
3. Create new card
4. Click on the card (It is important to click on the card to reproduce this defect)
5. Assign name through the Details fly out on the right hand side
6. Hit Enter key
Expected Results: Task gets created
Actual Results: Task does not get created. The following error gets thrown:
"API-1018: Could not process the request. Refer to error code for more details"
Defect with ID DE59227.
The defect is fixed in version 15.9.1.